10402101 has 28 divisors (see below), whose sum is σ = 16438720. Its totient is φ = 6561000.

The previous prime is 10402099. The next prime is 10402103. The reversal of 10402101 is 10120401.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (10402099) and next prime (10402103).

It is not a de Polignac number, because 10402101 - 2¹ = 10402099 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10402103) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 13476 + ... + 14226.

Almost surely, 2^10402101 is an apocalyptic number.

It is an amenable number.

10402101 is a deficient number, since it is larger than the sum of its proper divisors (6036619).

10402101 is an frugal number, since it uses more digits than its factorization.

10402101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 788 (or 773 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 10402101 is about 3225.2288290910. The cubic root of 10402101 is about 218.2932744459.

Adding to 10402101 its reverse (10120401), we get a palindrome (20522502).

The spelling of 10402101 in words is "ten million, four hundred two thousand, one hundred one".